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CVE-2025-14831

Gnutls: gnutls: denial of service via excessive resource consumption during certificate verification

Published: Feb 9, 2026Updated: Sep 1, 2026 Sources: CVE List NVD BDU csafCWE-407
5.3MEDIUM
NVD MITRE
EPSS Score
0.7%
Top 49.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

A flaw was found in GnuTLS. This vulnerability allows a denial of service (DoS) by excessive CPU (Central Processing Unit) and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names (SANs).

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-407

Affected Products

Red Hat Inc.
commercial·USaka Red Hat
Red Hat Enterprise Linux 10On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 10.0 Extended Update SupportOn-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportOn-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnOn-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportOn-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnOn-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceOn-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsOn-premOS
Operating Systems / linux-distro
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
АО «СберТех»
commercial·RUaka сбертех, ao sbertech
Platform V SberLinux OS ServerOn-premOS
Operating Systems / linux-distro
Free Software Foundation, Inc.
oss-project·USaka free software foundation, fsf
GnuTLS
OSS Libraries
and 23 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2025-14831?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2026:13812
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:16008
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:16009
access.redhat.com
and 296 more references View all →

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